Anchor bolt



Apri] 25, 1944. u M. E. TURNER 2,347,581

ANCHOR BOLT Filed Feb. 5,. 1941 Patented Apr. 25,

UNITED STATESPATENT OFFICE This invention relates to anchoring means and more particularly an anchor bolt that can be quickly attached to a support such as a wall.

One of the objects of vide an improved anchor my invention is to probolt which can be readily attached to a support and once attached will remain so until detached by tion of the parts.

Another object of my preventing that it can be pulled from Still another object of proper manipulainvention is to provide its support.

my invention is to so construct an anchor bolt that when attached to a support, all openings where it enters said support will be sealed against entry of moisture, dust, dirt, and undesirable substances.

Other objects of my invention will become apparent from wall; Figure 2 is side View the following connection with the accompanying drawing in description taken in of my improved anchor them attached to a brick of the bolt; Figure 3 is a view of the locking washer taken on the line S--S of Figure l; Figures of a brick wall showing part 4 and 5 are views of a the position of the bolt prior to its being driven into the wall between two bricks and after said bolt has been turned to its operative position; an

modified form of locking washer having attaching .means thereon.

Referring to Figures 1 to which has formed on its the body of the bolt d Figure 6 is a view of a 5 inclusive, I indicates forward end an arrow shaped head 2 providing a piercing point 3 tion of the bolt and shoulders 4. The body porfrom its rear end forward is provided with threads 5 and also with diametrically positioned axially extending grooves 6. The extreme rear end has flat receive a tool for turning A locking washer 8 cooperates the bolt and is provided tioned projections 9 at cooperation with the thereby prevent any surfaces 1 in order to the bolt.

with the body of with diametrically posiits central opening for grooves 6 in the bolt to relative turning between the washer and body of the bolt. On surface of the washer which is to be presented toward the head end of the bolt there is Il) tapering outwardly from the The base of the particular projection washer.

provided a projection surface of the shown is somewhat diamond shaped with a major axis so related to the projections 9 on the washer when said Washer is positioned on the bolt that said major axis will be shoulders 4 on the hea at right angles to the d. The length of this ter of the hole in the washer. In addition to the locking washer, the bolt is provided with a nut I I cooperating with the threads.

To attach the anchor bolt, as for example to a brick wall, the head 2 is placed against the mortar joint I2, between two bricks, I3 and I4, with the plane of the arrow-shaped head parallel with the joint. This position is shown in Figure 4. The bolt is now driven into the joint by hitting the rear end thereof. When the head projects beyond the other side of the bricks a tool' is employed in cooperation with the fiat end surfaces 'I and the bolt rotated 90 degrees to a position shown in Figure 5. This now places the shoulders 4 of the head in a position to engage the bricks I3 and I4 so that the bolt cannot be pulled back out through the mortar joint. The nal position of the bolt in relation to the bricks is also shown in Figure l. The locking washer 8 is now positioned on the bolt, if not already thereon, and then the nut il screwed up. This draws the shoulders l against the bricks and forces the projection I on the washer into the opening (see Figure 5) caused by the driving of the head into the mortar joint. Asthe nut is screwed up to where the surface of the washer engages the outer surface of the bricks the openingwill be completely lled and no moisture, dirt, etc., will be able to enter any opening along side of the bolt. Also when the projection I0 has been forced into the opening created by the driving of the head through the mortar joint, this projection will prevent the bolt from being turned from its operative position as there can be no relative rotative movement between the washer and bolt. Therefore, even if the bolt should become somewhat loose it cannot be so turned as to permit the head to be pulled out of the wall. If just a common fiat washer were used, this could easily happen.

The portion of the threaded body of the bolt extending beyond the wall may receive a suitable member I5 whereby anything desired can be attached to the bolt and thus to the wall. The member I5 shown is a porcelain knob permitting the fastening of an electrical conductor. 'I'he knob is screwed directly onto the bolt. It is obvious of course that with this type of knob, the nut may be dispensed with and its function transferred to the knob.

In Figure 6 there is shown a modied form c1 locking washer` 8. The body of the washer is the same as previously described being provided with the projection I0. In addition however, there is formed integral with the washer an arm I6 which is so related to the washer that it will be positioned away from the wall when the bolt is attached to said wall and in place. This arm serves as a means for attaching any member to the bolt and by means of the bolt to the wall. As shown the arm is provided with threads l'l but it is obvious it can be provided with a'hook, eye or any other attaching means.

Although I have shown my improved anchor bolt so constructed as to 'be attachable to a brick wall it may be easily altered so as to be attacliable" to other types of walls or supportsA in which the hole is either formed by the bolt being" driven'in" The bolt can also be" the wall or is preformed. used to fasten two members together.

Being aware of the possibility of modilc'zationsI in theparticular structure herein described without departing from thefundamental principles of my invention, I do not intend that its scope be limited except as set forth by the appended claims. What I claim as new and desire to secure by Letters Patent of the United States is:

1. An anchor bolt construction for attachment to-a support, said construction comprising a bolt body provided with a head having la shoulder facing the body'of'the bolt so as to engage the rear surface of thek support after the head has been passed through the support andthe bolt turned through an angle,a washer adapted-to be mounted on-the bolt, cooperating means'carried by the washer and bolt for preventing relative rotation, said washerbeing provided with a projecting por'- tionv extending from one side ofthe washer in surrounding relation to the Washer opening and tapered from the washer toward the washer axis so that when the bolt is in position in the support and the washer mountedL on theouter end with the projection toward the support said projection can be' forced into the support -opening to lthus ll the entire end of the yopening in the support after the head has been passed through the support; and means cooperating with the bolt body and the washer for forcing the projection into tight wedging relation with the'surface forming thef'outer end portion of the opening in the support and also holding the shoulder of 'th'e head against the support.

An anchor bolt construction for attachment to a support, said construction comprising a bolt body having a threaded portion adjacent one end and a relatively nat piercing head at the other end to facilitate driving of the bolt through the support, said head also being formed to provide diametrically opposed shoulders facing the body of the bolt so as to engage the rear surface of the support after the head passes through the support and the bolt has been turned through an angle, a Washer adapted to be mounted on the bolt, cooperating means carried by the washer and bolt for preventing relative rotation, said washer being provided with a Wedge-shaped projection with its surfaces extending from one side of the Washer toward the washer axis and in total surrounding relation to the washer opening so that when the bolt is in position in the support and the washer mounted on the outer end with the projection toward the support said projection can extend into'the support opening formed by the driving of the head through the support to thus completely llthe end of the opening on all sides of the bolt body, and a nut 'on the threaded portion of the bolt for forcing the. projection into tight wdging relation with the outer end portion ofthe opening in the support on all sides of the bolt.

3.A An anchor bolt construction for attachment to a support, said construction comprising a bolt body having a threaded portion adjacent one end and a relatively flat piercing head at the other end to facilitate driving of the bolt through the support, said head also being formed to provide diametrically opposed shoulders facing the body of the bolt so as tor engage the rear surface ofthe support after the head passes through the support and the bolt has been turned through an angle, a washer adapted to `be mounted on the bolt, cooperating means carried by the washer and bolt for preventing relative rotation, said washer being provided with a projecting portion tapered toward its outer end and extending from one side of the washer in surrounding relation to the washer opening sc that when the bolt is in position in the support and the washer mounted on the outer end with the projection toward the support said projection can be forced into` the end of the support opening formed by the driving of the head through the support, said Washer also Abeing provided with an integral armrext'ending away from the plane of the washer 'and having a threaded end for attachment of a threadedtmernber, and a nut on the threaded portion of tl e bolt for forcing the projection into tight wedging relation with the said end portion of the" opening in the support.

MERRILL E. TURNER. 

